Psy is the stage name of Park Jae Sang, a South Korean singer and entertainer who will go down in history as the most successful K-pop star and the most successful music artist on YouTube. Although Psy, whose name is derived from the word “psycho,” has been a popular entertainer and MC since his official debut in Korea in 2001, it wasn’t until his “Gangnam Style” song went viral on YouTube in 2012 that he became an international sensation and a household name all over the globe. The song was the first song to hit 1 billion views on YouTube, and Psy’s signature equestrian dance has been copied and parodied by the thousands. With the release of his next song, “Gentleman,” Psy again broke records on YouTube as the most watched video with 22 million views within the first 24 hours of release. Psy was indeed born on December 31, 1977, in Gangnam, a ritzy part of Seoul, South Korea. He married Yoo Hye Yeon in 2006, and they have twin daughters.